Controllers | NCV881930

低静态电流 410 kHz 汽车同步降压控制器

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NCV881930 是一款 410 kHz 固定频率低静态电流降压控制器，具有最高 38 V（典型值）的运行扩频。它可与时钟或单独的 NCV881930 进行同步。采用峰值电流模式控制，基于较宽的输入电压和输出负载范围实现快速瞬变响应和严格的调节。器件内部带有反馈补偿，简化了设计。NCV881930 能够以恒定基本开关频率在 3.5 V（启动时为 4.5 V）到 18 V的汽车输入电压范围内转换。在最高 45 V 的负载突降条件下，该稳压器关断。使用带有自动切换到外部 5V 偏置电源的高电压偏置稳压器来提高能效。提供 UVLO、电流限值、短路保护和高温关断等若干保护特性。高开关频率产生低输出电压纹波，即使使用小电感值和全陶瓷输出滤波电容，从而打造出了一个节省空间的开关方案。（NCV891930 提供 2 MHz 版本）

  • Radio and Infotainment
  • Telematics
  • ADAS (safety applications)
  • Instrumentations & Clusters

  • Automotive

  • 30µA Operating Current at No Load
  • 50 mV Current Limit Sensing
  • Capable of 45 V Load Dump
  • Board Selectable Fixed Output Voltages With Lockout
  • 410 kHz Operating Frequency with synchronization capability
  • Adaptive Non−Overlap Circuitry
  • Integrated Spread Spectrum
  • Logic level Enable Input Can be Tied Directly to Battery
  • Short Circuit Protection Pulse Skip
  • Battery monitoring for UVLO and Overvoltage Protection
  • Thermal Shutdown (TSD)
  • Adjustable Soft−Start
  • Individual Enable and Reset pins
  • QFN Package with Wettable Flanks (pin edge plating)
  • NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
  • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant

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Reference Price

NCV881930MW00AR2G

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CAD Model

Pb

A

H

P

QFNW-24

484AE

1

260

REEL

4000

F

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1

Current/Voltage Mode

3.5

45

410

$1.4384

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可靠性数据

Die Related Summary Data

Device: NCV881930MW00AR2G

Equivalent to wafer fab process: I3T

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等效器件小时

平均故障间隔时间/平均无故障时间（按小时计算）

FITS

I3T

4

4350769675

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Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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